骨骼動畫在OpenGL（GLSL）與Assimp

我想實現在程序GLSL供電的骨骼動畫......而非美麗的3D動畫，我創建了一個怪物：https://i.imgur.com/dmpKg6n.gif 骨骼動畫在OpenGL（GLSL）與Assimp

嘗試了之後幾個不同的技術，我創建了一個不太可怕，但仍然滔天事情：

Monster

該模型是穿西裝的基本人權，動畫應該是腿部擺動，而所有其他靜止不動（一個非常簡單的測試動畫）。所有骨骼在t = 0時在其原始位置都有靜態關鍵幀，以儘量減少它們每隔幾秒跳出一個位置。

問題...應該是相當可見的。另外，我相當確定這個模型比它應該的高。

無論如何，這是我原來的頂點着色器：

#version 430 core 
layout (location = 0) in vec4 position; 
layout (location = 1) in vec3 normal; 
layout (location = 2) in vec2 texcoords; 
layout (location = 3) in vec4 color; 
layout (location = 4) in vec4 Weights; 
layout (location = 5) in vec4 BoneID; 
layout (location = 0) out vec4 f_position; 
layout (location = 1) out vec3 f_normal; 
layout (location = 2) out vec2 f_texcoord; 
const int MAX_BONES = 50; 
layout (location = 1) uniform mat4 proj_matrix; 
layout (location = 2) uniform mat4 mv_matrix; 
layout (location = 6) uniform mat4 boneTrans[MAX_BONES]; 
void main(void) 
{ 
mat4 boneTransform = (boneTrans[int(BoneID[0])] * Weights[0]) + 
(boneTrans[int(BoneID[1])] * Weights[1]) + 
(boneTrans[int(BoneID[2])] * Weights[2]) + 
(boneTrans[int(BoneID[3])] * Weights[3]); 
float rem = 1 - (Weights[0] + Weights[1] + Weights[2] + Weights[3]); 
boneTransform += mat4(1.0) * rem; 
f_texcoord = texcoords; 
f_position = mv_matrix * (boneTransform * position); 
mat4 mv_mat_simple = mv_matrix; 
mv_mat_simple[3][0] = 0.0; 
mv_mat_simple[3][1] = 0.0; 
mv_mat_simple[3][2] = 0.0; 
vec4 norm1 = boneTransform * vec4(normal, 1.0); 
vec4 nnormal = mv_mat_simple * vec4(norm1.xyz, 1.0); 
f_normal = nnormal.xyz/nnormal.w; // TODO: Normalize? 
vec4 pos1 = boneTransform * position; 
gl_Position = proj_matrix * mv_matrix * vec4(pos1.xyz, 1.0); 
}

，這是我新的：

#version 430 core 

layout (location = 0) in vec3 position; 
layout (location = 1) in vec3 normal; 
layout (location = 2) in vec2 texcoords; 
layout (location = 3) in vec4 color; 
layout (location = 4) in vec4 Weights; 
layout (location = 5) in vec4 BoneID; 

layout (location = 0) out vec4 f_position; 
layout (location = 1) out vec3 f_normal; 
layout (location = 2) out vec2 f_texcoord; 

const int MAX_BONES = 50; 

layout (location = 1) uniform mat4 proj_matrix; 
layout (location = 2) uniform mat4 mv_matrix; 
layout (location = 6) uniform mat4 boneTrans[MAX_BONES]; 

void main(void) 
{ 
    vec4 pos1 = vec4(position, 1.0); 
    pos1 += (boneTrans[int(BoneID[0])] * vec4(position, 0.0)) * Weights[0]; 
    pos1 += (boneTrans[int(BoneID[1])] * vec4(position, 0.0)) * Weights[1]; 
    pos1 += (boneTrans[int(BoneID[2])] * vec4(position, 0.0)) * Weights[2]; 
    pos1 += (boneTrans[int(BoneID[3])] * vec4(position, 0.0)) * Weights[3]; 
    vec4 norm1 = vec4(normal, 1.0); 
    norm1 += (boneTrans[int(BoneID[0])] * vec4(normal, 0.0)) * Weights[0]; 
    norm1 += (boneTrans[int(BoneID[1])] * vec4(normal, 0.0)) * Weights[1]; 
    norm1 += (boneTrans[int(BoneID[2])] * vec4(normal, 0.0)) * Weights[2]; 
    norm1 += (boneTrans[int(BoneID[3])] * vec4(normal, 0.0)) * Weights[3]; 
    f_texcoord = texcoords; 
    f_position = mv_matrix * vec4(pos1.xyz, 1.0); 
    mat4 mv_mat_simple = mv_matrix; 
    mv_mat_simple[3][0] = 0.0; 
    mv_mat_simple[3][1] = 0.0; 
    mv_mat_simple[3][2] = 0.0; 
    //vec4 norm1 = boneTransform * vec4(normal, 1.0); 
    vec4 nnormal = mv_mat_simple * vec4(norm1.xyz, 1.0); 
    f_normal = nnormal.xyz/nnormal.w; // TODO: Normalize? 
    gl_Position = proj_matrix * mv_matrix * vec4(pos1.xyz, 1.0); 
}

骨處理代碼既不漂亮也不短：http://pastebin.com/A8x1GdUw

那代碼和原始着色器源自http://ogldev.atspace.co.uk/www/tutorial38/tutorial38.html

新的着色器來自隨機搜索。

編輯：現在我得到這樣的：

Leg twisty twisty